Lens and reflector retainer for lamp-doors.



W. T. JONES. LENS AND REFLECTOR RETAINER FOR LAMP DOORS.

APPLICATION FILED SEPT. 11, 1911.

Patented Dec. 3, 1912.

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LIAM T. JONES, 015 DETROIT, MICHIGAN, ASSIGNOR TO THE ERMUNDS & JONES MFG. (30., OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

LENS AND REFLECTOR RETAINER FOR LAMP-DOORS.

Specification of Letters Patent.

Patented Dec. 3, 1912.

Application filed September 11, 1911. Serial No. 648,752.

To all whom it may concern:

Be it known that I, WILLIAM T. JONES,

a citizen of the United States, residing at Detroit, inIthe county of Wayne, State of Michigan, have invented certain new and useful Improvements in Lens and Reflector Retainers for Lamp-Doors; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to'make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to a lens and reflector retainer for the doors of vehicle lamps and consists in the construction and arrangement'of parts hereinafter more fully set forth and claimed.

' The object of the invention is to provldc simple and efiicient means for securing a lens in the door of a vehicle lamp in a manner to revent rattling thereof and obviate the liability of breakage/and at the same time provide for retaining in position upon said door a reflector in which a burner is located, the arrangement being such as to retain both the glass and reflector in placeby the same fastening means, and at the same time exclude dust from the interior of the reflector whereby the necessity of cleaning its polished surface is obviated. The arrangement comprehends such an association of parts as to enable the reflector to be easil and quickl secured in place and readily removed w en desired. 7 H v The above object is attained by the structure illustrated in the accompanying drawings, in which Figure 1 is a view showing the inner face I of the door of a lamp and illustrating the application of my invention thereto, the body of the lamp being broken away. Fig.

2 is a horizontal section through the door,

the lens and the reflector. Fig. 3 is an enlarged 4 aentary view in section through the marginal portion ofthe reflector, showin a com ressible bufier seated in a chan- 9 no? formec? therein.

1 Referring to the characters by reference, 1 designates a lamp bodyto which is hinged in anys'uitable manner a door 2, which is preferably circular in form and adapted to open outwardly from the body of the lamp.

ished, and which at the vertex thereof is provided with a suitable burner 7 illustrated herein as an electric burner. At the outer endof the reflector it is provided with an outwardly extending circular flange 8 of a diameter to lie within the circular frame of the door. Formed in the flange 8 of the reflector is a circular channel 9, s

the side walls of which are normally straight, and in which is seated a ring 10 of rubber or other compressible material. To

secure said ring in the channel 9 one side of said channel is forced inwardly after the ring is disposed therein, as clearly shown in Fig. 3, whereby the transverse area of said channel is reduced at or near the open side thereof so as to retain the compressible filling 10 therein. Said ring or fillin is of greater width than the depth of said channel so that a portion of said ring projects from the channel beyond the outer face of the flange 8. When the reflector is in position Within the door 'of the lamp the rojecting portion of the ring 10 bears agalnst the inner face of the glass and holds said glass against the shoulder formed by the polled outer portion 3 of the door of the TE ,detachably retain the reflector and glass within the door a spring ring'12 is employed. Said ring is open and the terminals 13 thereof are bent outwardly so as to engage under the annular shoulder 5 of the door frame.

than that of the flange 8 of the reflector so as to enable said' flange to pass through said ring when the latter is in position in the The radius of the circle described by the ring 12 is slightly greater flectorin the door of thelamp,and at the same time have a bearing upon the annular shoulder 5 of the door frame to hold the reflector and glass therein, said ring is pro- I I 1 s m vided with a seriesof inwardly extending.

bends or points '14 and. a series of interposed outwardly extending bends or points 15. The bends 14 are adapted to engage the outer face'of the mar al portion of the flange. 8 to hold the re ector in place while the outwardly extending bends 15 together with the outwardly turnedpoints 13 of the terminals of said ring engage under the 'rovide the ring with" suflicient transverse" exibility to hold annular shoulder 5. To

saidparts within the frame of the lamp door under the requisitetension said ring 1s provided with a series ,of lateral bends in opposite directions in alternate succession as shown-bydott'ed lines in Fi 2, the angle of said lateral bends} being docated at the points-where the short inwardly and out- ,wardly extending bends 14'and 15 occur.

By this arrangement the inwardly 'bent points'l are caused to forcibly bear upon ,the inner face of the'flange 18 of the reflector, whilelthe outwardly bent points 15 together with the'terminals 13 of said ring bear forcibly against the annular shoulder 5 so that the rubber ring in the flange of the.

reflector is held with such tension against the inner face of the glass asto force the outer face. of said glass against the rolled shoulder 3. 5' This arrangement not only securely fastens the reflector and glass in the door frame of the lamp but also serves to exclude dust and moisture from the in- A te'rior of the reflector by reason of the sealingiaction'of the rubber ring against the face of the glass or lens.

In order to enable thereflector to be removed from the door frame and reinserted therein when the ring 12 is in position thecircular margin of the flange 8 of said re-' flector is provided with a' plurality of curved notches or recesses -16, as clearly shown'in Fig. 1. These recesses are so disv posed as to register with the inwardly bent points 14 of the ring 12, so that, by so placing the reflector as to cause said recesses to receive said points, and partially rotating the reflector in either direction, the points 14 will-be caused to ride onto the solid'portion of the flange 8 out of said recesses and firmly. lock the reflector and glass in the door frame under such tension as to obviate I rattling of the parts.

The burner 71 being fixed in the vertex of the reflector by a lock'nut 17 is perfectly held n focus in a manner that requires no adjustmg and obviates the possibility of any change in the relations between the reflector and burner." 1

Having thus any safar s my invention,

what I claim; as newandde'sire' tosecure by Letters Pa ana-is ,:1.-

1. In combination a lamp frame, a

lens bearinfg with: its outer fface" against a portion of-sald frame,"a reflector in-the rear of said lens, and means interposed between a portion of the lamp frame and said reflector for yieldingly retaining the reflector and lens in position in the door.

' 2. A lamp frame havingan annular retainingmember, a glass seated against said member, a reflector in the rear-of said glass,

a compressible element interposed between the glass and reflector to transmit pressure from the latter to the former, and a yieldable locking member cooperating with the reflector and with the .frame of the lamp for retaining the reflector and glass in place.

her, a glass lying against said retaining member, a reflector having a marginal flange door frame having a shoulder in the rearof the flange of the reflector,-and a spring locking ring interposed between the margin'of said-reflector and said shoulder on the door frame and coii'perating therewith to lockthe reflector and glass in position. a i I 5. A lamp door having a retaining member, a glass lying against said, member, a"

reflector having a marginal flange lying against the rear face of said glass, the door frame having a projecting shoulder, lockln'g means cooperating with said shoulder andthe reflector to lock the reflector and glass in the door frame, and means for excludlng dust from between the marginal flange of the reflector and the inner face of the glass.

' 6. A lamp door having a supporting mem-.

ber, a glass lying thereagainst, a reflector mounted upon the rear face of said lass,- and resilient means'for urging the re ector and glass against said supporting member to yieldingly. retain the glass and reflector within the frame of the door.

7 A lamp door having a retaining member, a glass lying against said member, a reflector having a marginal flange, a compressible element between the flange of the reflector and the. rear face of the glass, and

means for applying a yielding pressure to the rear 'face of the flange of'the reflector to'crowd the compressible element against taining member of 'thedoor.

8. A lampv door having 'a'retalnmg memthe glass and hold the glass against the reber, a glass lying against said member, a

reflector having a marginal flange provided with a channel therein, a compressible element lying in said channel and adapted to engage the rear face of the glass, and means 90 lying against the rear face of said glass, the v 4 i s noaaesa L J cooperating with the flange of the reflector and the door fraine for locking said parts in position.

9. A lamp door having a retaining member, a glass lying against said member, a-

reflector having a marginal flange engaging the rear face of said glass; a shoulder on the door frame, and a spring ring having lateral bends therein and contact points at said bends adapted to engage said shoulder of the door frame and the margin of said reflector,

when said ring is interposed between the margin of the reflector and said shoulder, to yieldingly retain the parts in position.

10. A door frame having a retaining meme ber, a glass lying against said member, a

ring having projecting points adapted reflector having a marginal flange/ lying against the rear face of said glass, the door frame having an annular shoulder in the rear of the flange of the reflector, a spring to engage said shoulder and saidflanfgeto retain the reflector and glass in the door frame, and the flange of .the reflector having notches adapted to register with the inward projecting points on said ring. J In testimony whereof, I sign this specification in the presence of two witnesses.

' WILL T. JONES. Witnesses: I

J. Orro BAENZIGER, MARIE Bnonsam. 

